By angle
Not Lite
By angle routine classifies points according to the scan angle, the angle from vertical, or the angle from the line edge.
The Scan angle can be stored as attributes for laser points in TerraScan FastBinary and LAS files. If points from other file formats are used, or if the attribute is not stored, a scan angle is computed based on the trajectories and their values can range from -128 and +127 degree.
Angles from vertical are computed based on trajectories and can range from 0 to 90 degree.
Angles from edge uses the angle attribute stored for laser points and thus, requires that points are stored in TerraScan FastBinary or LAS files. The option can be used to classify points along scan line edges at a high angular accuracy.
SETTING |
EFFECT |
|---|---|
From class |
Source class(es). |
|
Opens the Select classes dialog which contains the list of active classes in TerraScan. You can select multiple source classes from the list that are then used in the From class field. |
To class |
Target class. |
Use |
Type of angle used for classification: Scan angle, Angle from vertical, or Angle from edge. |
Angle |
Range of angle values. A point is classified if its angle value falls within the given range. |
Inside fence only |
If on, points inside a fence or selected polygon(s) are classified. |
